1. The problem statement, all variables and given/known data A bicycle drives on a straight road with a velocity v = 18 km/h. How many turns (rotations) of peddles per second must be carried out by cyclists, if the radius of the wheels r = 35 cm, and the ratio of the radii of front and rear gear wheels is 2:1? 2. Relevant equations I used formula v=2(pi)r * f 3. The attempt at a solutionSo, I have another problem which says: I converted: 18km/h = 5m/s and 35cm = 0.35m, so now we have all units unified. I plugged the numbers into the formula and got the result f= 2.27. And now we have the ratio 2:1, and since the the front gear wheel is larger than the rear one I multiplied by 2 and got the FINAL result which is 4.55 turns of peddles per second. Are my calculations correct? Thank you for all the help!